diff --git a/apps/ndn-consumer-window.cc b/apps/ndn-consumer-window.cc
index ae4a0c9..2a87ef6 100644
--- a/apps/ndn-consumer-window.cc
+++ b/apps/ndn-consumer-window.cc
@@ -186,9 +186,9 @@
 ///////////////////////////////////////////////////
 
 void
-ConsumerWindow::OnContentObject (Ptr<const ContentObject> contentObject)
+ConsumerWindow::OnData (Ptr<const Data> contentObject)
 {
-  Consumer::OnContentObject (contentObject);
+  Consumer::OnData (contentObject);
 
   m_window = m_window + 1;